A bright blue clue has led to the arrest of a Northwest Side man, the suspect in an early morning string of robberies, according to San Antonio police.

The man, believed to be about 18 or 19 years old, was found hiding in a room of his grandfather’s home in the 7200 block of Marble Creek Drive.

Officers knocked on the door after spotting the “very distinct” getaway car — a bright-colored Fiat — parked outside, police said.

“The dark blue to purple color is not often seen, so it stood out,” said Capt. Cris Andersen. "(Officers) checked the engine, noticed it was hot."

The suspect, whose name was not released immediately, is accused of robbing at least three businesses, beginning around 6 a.m. Monday.

Andersen said the crime spree started with an unsuccessful robbery at a Valero store on Wurzbach Road.

“He made a verbal request for cash out of the register, (but) did not display a weapon,” he said.

In that case, the clerk reportedly refused to give up any cash.

A short time later, at another Valero at Grissom and Timberhill roads, the suspect also struck out, Andersen said.

“The clerk was in the middle of a shift change, and did not have any money in the register,” he said.

Andersen said at a third Valero, at Bandera and Huebner roads, the same suspect walked in and purchased several items before leaving.

He then went across the street to a Whataburger, demanded cash and left with money from the register, Andersen said.

In nearly all the cases, police said witnesses gave a description matching the bright blue Fiat.

“It was through good police work that officers found it,” he said, “and not just by driving around on the main roads, but all these neighborhood streets.”

The suspect is expected to be face at least one count of aggravated robbery.

Soon after his arrest, officers also took a second man into custody a few blocks away on Cherrybrook Street.

However, it was not clear whether that second person also will be named as a suspect in the robbery spree.

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